WO2024065095A1 - Procédé et appareil d'indication, dispositif, et support de stockage - Google Patents

Procédé et appareil d'indication, dispositif, et support de stockage Download PDF

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Publication number
WO2024065095A1
WO2024065095A1 PCT/CN2022/121405 CN2022121405W WO2024065095A1 WO 2024065095 A1 WO2024065095 A1 WO 2024065095A1 CN 2022121405 W CN2022121405 W CN 2022121405W WO 2024065095 A1 WO2024065095 A1 WO 2024065095A1
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WIPO (PCT)
Prior art keywords
signaling
automatic repeat
hybrid automatic
repeat request
retransmissions
Prior art date
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PCT/CN2022/121405
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English (en)
Chinese (zh)
Inventor
刘敏
Original Assignee
北京小米移动软件有限公司
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Priority to CN202280003434.XA priority Critical patent/CN115735397A/zh
Priority to PCT/CN2022/121405 priority patent/WO2024065095A1/fr
Publication of WO2024065095A1 publication Critical patent/WO2024065095A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to an indication method, device, equipment and storage medium.
  • the HARQ-ACK feedback of the random access message means that in the random access process, after the base station receives and parses the terminal device identifier contained in message 3 (Message.3, Msg.3), it sends message 4 (Message.4, Msg.4) on the physical downlink shared channel PDSCH.
  • Msg.4 can also be called a contention resolution message.
  • the existing Msg.4 is scheduled by DCI format 1_0 scrambled by TC-RNTI.
  • the current DCI contains the following fields: DCI format identifier Identifier for DCI formats, frequency domain resource assignment domain Frequency domain resource assignment domain Time domain resource assignment domain, etc.
  • the information storage capacity contained in each domain may be different.
  • the hybrid automatic repeat request acknowledgement message HARQ-ACK feedback of the random access message cannot meet the coverage requirement, which affects the effect of the hybrid automatic repeat request acknowledgement message HARQ-ACK feedback.
  • the embodiments of the present disclosure provide an indication method, apparatus, device, chip system, storage medium, computer program and computer program product, which can be applied in the field of communication technology and can accurately indicate the number of retransmissions of a hybrid automatic repeat request confirmation message based on first indication information, thereby effectively improving the coverage capability and feedback effect of the hybrid automatic repeat request confirmation message.
  • an embodiment of the present disclosure provides an indication method, which is executed by a terminal device, and the method includes:
  • first indication information sent by a network device, where the first indication information is used to indicate a number of retransmissions of a hybrid automatic repeat request confirmation message corresponding to a random access message;
  • the first indication information is a first indication field of a first signaling, and the first indication field is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message.
  • the first signaling includes at least one of the following:
  • the random access message is scheduled using downlink control information DCI.
  • the first indication information is at least one first indication field of the first signaling; the number of retransmissions of the hybrid automatic repeat request confirmation message is a value corresponding to the at least one first indication field.
  • the first indication information includes a first signaling and a second signaling; wherein the first signaling is used to indicate the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message; and the second signaling is used to indicate the number of retransmissions of one hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message.
  • the first indication information includes predefined configuration information and second signaling;
  • the predefined configuration information includes at least one candidate number of retransmissions of the hybrid automatic repeat request confirmation message;
  • the second signaling is used to indicate a first indication field, and the first indication field is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the at least one candidate number of retransmissions of the hybrid automatic repeat request confirmation message.
  • the first signaling is radio resource control RRC signaling
  • the second signaling is downlink control information DCI for scheduling the random access message.
  • the method further comprises:
  • a first request is sent to the network device, where the first request is used to request the network device to send the first indication information.
  • sending the first request to the network device includes:
  • the first request is sent to the network device.
  • the preset type at least includes: a non-terrestrial network NTN.
  • sending the first request to the network device includes:
  • the first request is sent to the network device.
  • the first threshold is an RSRP value.
  • the method further comprises:
  • an embodiment of the present disclosure provides another indication method, which is executed by a network device, and the method includes:
  • the terminal device Sending first indication information to the terminal device, where the first indication information is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message corresponding to the random access message;
  • the first indication information is a first indication field of a first signaling, and the first indication field is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message.
  • the first signaling includes at least one of the following:
  • the random access message is scheduled using downlink control information DCI.
  • the first indication information is at least one first indication field of the first signaling; the number of retransmissions of the hybrid automatic repeat request confirmation message is a value corresponding to the at least one first indication field.
  • the first indication information includes a first signaling and a second signaling; wherein the first signaling is used to indicate the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message; and the second signaling is used to indicate the number of retransmissions of one hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message.
  • the first indication information includes predefined configuration information and second signaling;
  • the predefined configuration information includes at least one candidate number of retransmissions of the hybrid automatic repeat request confirmation message;
  • the second signaling is used to indicate a first indication field, and the first indication field is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the at least one candidate number of retransmissions of the hybrid automatic repeat request confirmation message.
  • the first signaling is radio resource control RRC signaling
  • the second signaling is downlink control information DCI for scheduling the random access message.
  • the method further comprises:
  • the method further comprises:
  • an embodiment of the present disclosure provides a communication device, which has some or all of the functions of the terminal device in the method described in the first aspect above.
  • the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone.
  • the functions may be implemented by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may also include a storage module, which is coupled to the transceiver module and the processing module, and stores computer programs and data necessary for the communication device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • an embodiment of the present disclosure provides another communication device, which has some or all of the functions of the network device in the method example described in the second aspect above, such as the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone.
  • the functions may be implemented by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may also include a storage module, which is used to couple with the transceiver module and the processing module, and store the computer programs and data necessary for the communication device.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory, the indication method described in the first aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory, the indication method described in the second aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the indication method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the indication method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the indication method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the indication method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication system, the system comprising the communication device described in the third aspect and the communication device described in the fourth aspect, or the system comprising the communication device described in the fifth aspect and the communication device described in the sixth aspect, or the system comprising the communication device described in the seventh aspect and the communication device described in the eighth aspect, or the system comprising the communication device described in the ninth aspect and the communication device described in the tenth aspect.
  • an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions for the above-mentioned terminal device.
  • the terminal device executes the indication method described in the above-mentioned first aspect.
  • an embodiment of the present disclosure provides a readable storage medium for storing instructions used by the above-mentioned network device.
  • the network device executes the indication method described in the above-mentioned second aspect.
  • the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the indication method described in the first aspect above.
  • the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the indication method described in the second aspect above.
  • the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a terminal device to implement the functions involved in the first aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, and the memory is used to store computer programs and data necessary for the terminal device.
  • the chip system can be composed of a chip, or can include a chip and other discrete devices.
  • the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a network device to implement the functions involved in the second aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, and the memory is used to store computer programs and data necessary for the network device.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the indication method described in the first aspect.
  • the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the indication method described in the second aspect.
  • the indication method, device, equipment, chip system, storage medium, computer program and computer program product provided in the embodiments of the present disclosure can achieve the following technical effects:
  • the first indication information is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message corresponding to the random access message, and sending the hybrid automatic repeat request confirmation message according to the first indication information, it is possible to accurately indicate the number of retransmissions of the hybrid automatic repeat request confirmation message based on the first indication information, thereby effectively improving the coverage capability and feedback effect of the hybrid automatic repeat request confirmation message.
  • FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • FIG2 is a schematic diagram of a flow chart of an indication method provided by an embodiment of the present disclosure.
  • FIG3 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • FIG4 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • FIG5 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • FIG6 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • FIG7 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • FIG8 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • FIG9 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG10 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
  • first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the words "if” and “if” as used herein may be interpreted as “at” or "when” or "in response to determination".
  • NTN Non-terrestrial Network
  • Non-terrestrial networks refer to technologies that use typical satellites and high-altitude platforms (HAPS) to participate in network deployment. Compared with traditional terrestrial networks, non-terrestrial networks are suitable for solving situations where base stations cannot be built or are damaged, such as continuous coverage in remote mountainous areas, deserts, oceans, and forests, or emergency communications when disasters occur and base stations are damaged. Typical NTN scenarios can be summarized as: all-terrain coverage, signaling diversion, emergency communications, the Internet of Things, and broadcast services.
  • HAPS high-altitude platforms
  • Random access refers to the process from when a user sends a random access preamble to try to access the network to when a basic signaling connection is established with the network. Random access is a very critical step in mobile communication systems and is also the last step in establishing a communication link between a terminal and a base station. Random access is divided into competitive random access and non-competitive random access.
  • Radio resource control also known as Radio Resource Management (RRM) or Radio Resource Allocation (RRA) refers to the management, control and scheduling of radio resources through certain strategies and means. It makes full use of limited wireless network resources as much as possible while meeting the service quality requirements, ensuring that the planned coverage area is reached and the service capacity and resource utilization are improved as much as possible.
  • RRM Radio Resource Management
  • RRA Radio Resource Allocation
  • DCI Downlink Control Information
  • Downlink control information refers to the downlink control information sent by the eNB to the UE and carried by the downlink physical control channel (PDCCH), including uplink and downlink resource allocation, HARQ information, power control, etc.
  • PDCCH downlink physical control channel
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include, but is not limited to, a network device and a terminal device.
  • the number and form of devices shown in FIG. 1 are only used as examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included.
  • the communication system shown in FIG. 1 includes, for example, a network device 101 and a terminal device 102.
  • LTE long term evolution
  • 5G fifth generation
  • NR 5G new radio
  • the network device 101 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals.
  • the network device 101 can be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system.
  • eNB evolved NodeB
  • TRP transmission point
  • gNB next generation NodeB
  • WiFi wireless fidelity
  • the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device.
  • the network device may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be called a control unit (control unit).
  • the CU-DU structure may be used to split the protocol layer of a network device, such as a base station, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU.
  • the terminal device 102 in the disclosed embodiment is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal device may also be referred to as a terminal device (terminal), a user equipment (UE), a mobile station (MS), a mobile terminal device (MT), etc.
  • the terminal device may be a car with communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
  • FIG2 is a flow chart of an indication method provided by an embodiment of the present disclosure, which is executed by a terminal device.
  • the indication method in this embodiment can be applied to a terminal device, such as a mobile phone or a tablet with mobile communication function, a smart watch, etc., without limitation.
  • the method may include but is not limited to the following steps:
  • S102 Receive first indication information sent by a network device, where the first indication information is used to indicate a number of retransmissions of a hybrid automatic repeat request acknowledgement message corresponding to a random access message.
  • the first indication information refers to a message sent by a network device to a terminal device to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message corresponding to a random access message.
  • Random access refers to the process from when a user sends a random access preamble to try to access the network to when a basic signaling connection is established with the network. Random access is divided into competitive random access and non-competitive random access.
  • the random access message can be a contention resolution message of the random access process, such as Message 4 (Msg.4), or Message B (Msg.B).
  • the Hybrid Automatic Repeat request-ACKnowledgement (HARQ-ACK) message refers to the confirmation message sent by the terminal device to the network device after successfully decoding the random access message.
  • S202 Send a hybrid automatic repeat request confirmation message according to the first indication information.
  • the first indication information is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message corresponding to the random access message, and sending the hybrid automatic repeat request confirmation message according to the first indication information, the number of retransmissions of the hybrid automatic repeat request confirmation message can be accurately indicated based on the first indication information, thereby effectively improving the coverage capability and feedback effect of the hybrid automatic repeat request confirmation message.
  • An indication method is also provided in an embodiment of the present disclosure, wherein the first indication information is the first indication field of the first signaling, and the first indication field is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message.
  • the number of retransmissions can be quickly determined based on the first signaling to effectively improve the indication efficiency.
  • signaling refers to the messages transmitted between different links of the communication network (base station, mobile station/terminal equipment and mobile control switching center, etc.), each link can be analyzed and processed and form a series of operations and controls through interaction, which is used to ensure the effective and reliable transmission of user information.
  • the first signaling refers to the signaling used to carry the first indication information.
  • the first indication field refers to a field in the first signaling used to indicate the number of retransmissions.
  • the first signaling includes at least one of the following: radio resource control RRC signaling, downlink control information DCI for scheduling random access messages, thereby ensuring the indication effect of the first signaling on the number of retransmissions.
  • Radio Resource Control refers to the management, control and scheduling of wireless resources through certain strategies and means, making full use of limited wireless network resources as much as possible while meeting the requirements of service quality, ensuring that the planned coverage area is reached, and improving service capacity and resource utilization as much as possible.
  • DCI downlink control information
  • PDCCH downlink physical control channel
  • An indication method is also provided in an embodiment of the present disclosure, wherein the first indication information is at least one first indication field of the first signaling; the number of retransmissions of the hybrid automatic repeat request confirmation message is a numerical value corresponding to at least one first indication field, thereby ensuring the reliability of the indication of the number of retransmissions by the first indication information.
  • the first indication information includes a first signaling and a second signaling; wherein the first signaling is used to indicate the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message; and the second signaling is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message.
  • the indication contents of the first signaling and the second signaling can be effectively combined in the process of determining the number of retransmissions to effectively improve the flexibility of the indication process.
  • the second signaling refers to a signaling used to indicate the number of retransmissions, and the second signaling is not the same as the first signaling.
  • the first indication information includes predefined configuration information and second signaling;
  • the predefined configuration information includes the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message;
  • the second signaling is used to indicate the first indication field, and the first indication field is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message, thereby effectively improving the control effect of the retransmission number acquisition process based on the predefined candidate retransmission number.
  • An indication method is also provided in an embodiment of the present disclosure, wherein the first signaling is a radio resource control RRC signaling, and/or the second signaling is a downlink control information DCI for scheduling a random access message.
  • the practicality of the first signaling and the second signaling in the indication process can be effectively improved, and the indication effect can be effectively improved.
  • FIG3 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in FIG3 , the method may include but is not limited to the following steps:
  • S103 Send a first request to the network device, where the first request is used to request the network device to send first indication information.
  • the first request refers to a message used to request the network device to send first indication information.
  • the first request is used to request the network device to send the first indication information, which can provide a reliable trigger basis for the network device to send the first indication information, thereby effectively improving the timeliness of the network device sending the first indication information.
  • this embodiment can be implemented alone or in combination with other embodiments of the present disclosure.
  • this embodiment can be implemented in combination with the embodiment shown in FIG. 2 .
  • FIG4 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in FIG4 , the method may include but is not limited to the following steps:
  • the preset type refers to a predetermined network type suitable for sending the first request.
  • the timing of sending the first request can be effectively controlled based on the preset type, thereby effectively improving the practicality of the indication method.
  • this embodiment can be implemented alone or in combination with other embodiments of the present disclosure.
  • this embodiment can be implemented in combination with the embodiment shown in FIG. 2 .
  • An indication method is also provided in an embodiment of the present disclosure, and the preset types include at least: non-terrestrial network NTN. Therefore, the indication method can be executed in time when the terminal device accesses the non-terrestrial network to ensure the transmission reliability of the hybrid automatic repeat request confirmation message.
  • non-terrestrial network refers to the technology that uses typical satellites and high-altitude platforms (HAP: satellites and High-AlTItude Platforms) to participate in network deployment.
  • HAP high-altitude platforms
  • the corresponding network device may be, for example, a satellite or other aerial device.
  • the terminal device determines the type of network it is connected to, it can be determined through a specific field in the system information block message 1 (System Information Block 1, SIB1), such as cell-barredNTN. If this field exists, it indicates that the type of network the terminal device is connected to is an NTN network.
  • SIB1 System Information Block 1, SIB1
  • the network model connected can be determined by searching the frequency point, or the satellite ephemeris information in SIB19 can be used to determine the type of satellite orbit connected, such as a low-orbit satellite, a synchronous satellite, etc. There is no restriction on this.
  • An indication method is also provided in an embodiment of the present disclosure.
  • the reference signal received power RSRP of the downlink channel or signal detected by the terminal device is lower than a first threshold, the first request is sent to the network device.
  • a reliable trigger basis for sending the first request can be provided based on the first threshold, thereby ensuring that the terminal device sends the first request in a timely manner.
  • the downlink channel refers to a channel used to transmit signals from a network device to a terminal device.
  • the signal carried by the downlink channel can be called a downlink signal.
  • Reference Signal Receiving Power refers to the key parameters that can represent the strength of wireless signals in communication networks and one of the physical layer measurement requirements. It is the average value of the signal power received on all REs (resource elements) carrying the reference signal in a symbol.
  • the first threshold refers to a threshold value configured for a reference signal received power RSRP of a downlink channel or signal.
  • An indication method is also provided in an embodiment of the present disclosure, wherein the first threshold is an RSRP value, thereby effectively improving the correlation between the first threshold and the reference signal received power RSRP to ensure the reliability of the comparison result between the reference signal received power RSRP and the first threshold.
  • FIG5 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in FIG5 , the method may include but is not limited to the following steps:
  • S105 Repeatedly transmit the hybrid automatic repeat request confirmation message to the network device according to the number of retransmissions indicated by the first indication information.
  • the coverage effect of the hybrid automatic repeat request confirmation message can be ensured.
  • this embodiment can be implemented alone or in combination with other embodiments of the present disclosure.
  • this embodiment can be implemented in combination with the embodiment shown in FIG. 2 .
  • FIG6 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a network device. As shown in FIG6 , the method may include but is not limited to the following steps:
  • S106 Send first indication information to the terminal device, where the first indication information is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message corresponding to the random access message.
  • S206 Receive a hybrid automatic repeat request confirmation message sent by the terminal device according to the first indication information.
  • the first indication message is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message corresponding to the random access message, and the hybrid automatic repeat request confirmation message sent by the receiving terminal device according to the first indication message.
  • the network device can accurately indicate the number of retransmissions of the hybrid automatic repeat request confirmation message corresponding to the random access message to the terminal device based on the first indication message, and receive the hybrid automatic repeat request confirmation message sent by the receiving terminal device according to the first indication message, so as to effectively improve the transmission effect of the hybrid automatic repeat request confirmation message.
  • An indication method is also provided in an embodiment of the present disclosure, wherein the first indication information is the first indication field of the first signaling, and the first indication field is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message, thereby effectively improving the indication effect of the first signaling on the number of retransmissions.
  • the first signaling includes at least one of the following: radio resource control RRC signaling, downlink control information DCI for scheduling random access messages.
  • An indication method is also provided in an embodiment of the present disclosure, wherein the first indication information is at least one first indication field of the first signaling, and the number of retransmissions of the hybrid automatic repeat request confirmation message is a numerical value corresponding to at least one first indication field, thereby ensuring the indication effect of the first indication information on the number of retransmissions.
  • the first indication information includes a first signaling and a second signaling; wherein the first signaling is used to indicate the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message; and the second signaling is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message, thereby effectively improving the flexibility and reliability of the indication of the number of retransmissions based on the first signaling and the second signaling.
  • the first indication information includes predefined configuration information and second signaling;
  • the predefined configuration information includes the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message;
  • the second signaling is used to indicate a first indication field, and the first indication field is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message, thereby providing reliable reference information for determining the number of retransmissions based on the predefined configuration information.
  • An indication method is also provided in an embodiment of the present disclosure, wherein the first signaling is a radio resource control RRC signaling, and/or the second signaling is a downlink control information DCI for scheduling a random access message, thereby effectively improving the practicality of the first signaling and the second signaling in the indication process.
  • the first signaling is a radio resource control RRC signaling
  • the second signaling is a downlink control information DCI for scheduling a random access message
  • FIG. 7 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a network device. As shown in FIG. 7 , the method can include but is not limited to the following steps:
  • S107 Receive a first request sent by the terminal device, where the first request is used to send first indication information to the terminal device.
  • the first request is used to send a first indication information to the terminal device.
  • the first indication information can be quickly sent to the terminal device based on the received first request, thereby effectively improving the timeliness of sending the first indication information.
  • this embodiment can be implemented alone or in combination with other embodiments of the present disclosure.
  • this embodiment can be implemented in combination with the embodiment shown in FIG. 6 .
  • FIG8 is a flow chart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a network device. As shown in FIG8 , the method may include but is not limited to the following steps:
  • S108 Receive the hybrid automatic repeat request confirmation message that is repeatedly transmitted by the terminal device according to the number of retransmissions indicated by the first indication information.
  • the reception effect of the hybrid automatic repeat request confirmation message by the network device can be effectively improved.
  • this embodiment can be implemented alone or in combination with other embodiments of the present disclosure.
  • this embodiment can be implemented in combination with the embodiment shown in FIG. 6 .
  • the terminal device sends demand indication information to the network device.
  • the terminal may send the demand information when the access network type is a preset type, which includes one or more of the following: non-terrestrial network, RSRP measured is lower than a threshold, power type is non-high power user, etc.
  • the preset type may also be other types.
  • the demand indication information may be, for example, specific PRACH information or MAC information included in Msg.3.
  • the number of repeated transmissions of the hybrid automatic repeat request confirmation message is determined by a signaling, it can be any of the following:
  • the number of repeated transmissions is determined based on the above-mentioned first signaling.
  • the first signaling is to add a field indicating the number of repeated transmissions in a specific RRC IE (information element).
  • the field is used to configure a value of the number of repeated transmissions.
  • the RRC IE can be PUCCH config common, RACH config common, etc.
  • the existing RRC IE can also be directly reused, and this application does not make specific limitations on this.
  • the first signaling is to add a field to configure a number of repeated transmissions in the downlink control information DCI (DCI Msg.4) used to schedule Msg.4, and directly use the value represented by the field to indicate the number of repeated transmissions; for example, the newly added field is NofHARQRep, which has 4 bits, so the value of the field can represent the number of retransmissions from 1 to 16.
  • DCI Msg.4 downlink control information
  • NofHARQRep which has 4 bits, so the value of the field can represent the number of retransmissions from 1 to 16.
  • the existing fields in the DCI can also be directly reused, and this application does not make specific restrictions on this.
  • the first signaling is implicitly indicated through the existing fields in DCI Msg.4.
  • the number of repeated transmissions of the hybrid automatic repeat request confirmation message is determined by multiple signalings, it can be any of the following:
  • Method 1 A set of values is configured through the first signaling + a value in the set is indicated through the second signaling, for example, the first signaling is RRC RACH config common, and the second signaling is DCI msg.4.
  • a 2-bit field in DCI Msg.4 corresponds to 4 different values.
  • the value indicated by the specific field is 4, it means that the number of repeated transmissions is 8.
  • Method 2 explicitly configure a set of values through the first signaling + implicitly indicate one of the values in the set through the second signaling, for example, the first signaling is RRC RACH config common, and the second signaling is DCI msg.4, by retranslating the existing domain, such as the high X bits of the MCS indication bit (for example: the first signaling configures 4 types of repeated transmission times ⁇ 1,2,4,8 ⁇ , then in DCI Msg.4, 2 bits of an existing domain (the upper two bits of MCS) correspond to 4 different values. When the value indicated by the upper two bits of MCS is 4, it means that the number of repeated transmissions is 8).
  • a value in the set of values can be implicitly indicated by a predefined set of values + second signaling, for example, the second signaling is DCI msg.4, and the indication is made by re-translating a specific field of DCI Msg.4 or an existing field (such as the MCS field).
  • the predefined values are ⁇ 1,2,8,16 ⁇ , and the value indicated by the upper two bits of MCS is 4, which means that the number of repeated transmissions is 16.
  • the first signaling configures the number of repetitions by defining a new parameter NumofMsg4HARQ-repetition.
  • the upper two bits of the MCS field in DCI Msg.4 correspond to one of the four values of the new parameter NumofMsg4HARQ-repetition; when this parameter is not present, the upper two bits of the MCS field in DCI Msg.4 correspond to one of the predefined values ⁇ 1,2,3,4 ⁇ .
  • Method 4 A combination of the above 2) and 3). When the first signaling exists, 2) is adopted. When the first signaling does not exist, 3) is adopted.
  • FIG9 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • the communication device 90 shown in FIG9 may include a transceiver module 901 and a processing module 902.
  • the transceiver module 901 may include a sending module and/or a receiving module, the sending module is used to implement a sending function, the receiving module is used to implement a receiving function, and the transceiver module 901 may implement a sending function and/or a receiving function.
  • the communication device 90 may be a terminal device (such as the terminal device in the aforementioned method embodiment), or a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 90 may be a network device (such as the network device in the aforementioned method embodiment), or a device in the network device, or a device that can be used in conjunction with the network device.
  • the communication device 90 on the terminal device side, includes:
  • the transceiver module 901 is used to receive first indication information sent by a network device, where the first indication information is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message corresponding to a random access message.
  • the transceiver module 901 is further configured to send a hybrid automatic repeat request confirmation message according to the first indication information.
  • the first indication information is a first indication field of the first signaling, and the first indication field is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message.
  • the first signaling includes at least one of the following:
  • Downlink control information DCI for scheduling random access messages Downlink control information DCI for scheduling random access messages.
  • the first indication information is at least one first indication field of the first signaling; the number of retransmissions of the hybrid automatic repeat request confirmation message is a value corresponding to the at least one first indication field.
  • the first indication information includes a first signaling and a second signaling; wherein the first signaling is used to indicate the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message; and the second signaling is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message.
  • the first indication information includes predefined configuration information and second signaling;
  • the predefined configuration information includes the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message;
  • the second signaling is used to indicate the first indication field, and the first indication field is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message.
  • the first signaling is radio resource control RRC signaling
  • the second signaling is downlink control information DCI for scheduling random access messages.
  • the transceiver module 901 is further used to send a first request to the network device, where the first request is used to request the network device to send first indication information.
  • the transceiver module 901 is further used to send a first request to the network device when the network type accessed by the terminal device is a preset type.
  • the preset types include at least: non-terrestrial network NTN.
  • the transceiver module 901 is further used to send the first request to the network device when the RSRP of the downlink channel/signal detected by the terminal device is lower than a first threshold.
  • the first threshold is an RSRP value.
  • the transceiver module 901 is further configured to repeatedly transmit a hybrid automatic repeat request confirmation message to the network device according to the number of retransmissions indicated by the first indication information.
  • a terminal device can receive a first indication message sent by a network device, the first indication message being used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message corresponding to a random access message, and send a hybrid automatic repeat request confirmation message according to the first indication message.
  • the hybrid automatic repeat request confirmation message can be accurately indicated based on the first indication information, thereby effectively improving the coverage capability and feedback effect of the hybrid automatic repeat request confirmation message.
  • the communication device 90 on the network device side, includes:
  • the transceiver module 901 is used to send first indication information to the terminal device, where the first indication information is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message corresponding to a random access message.
  • the transceiver module 901 is further configured to receive a hybrid automatic repeat request confirmation message sent by the terminal device according to the first indication information.
  • the first indication information is a first indication field of the first signaling, and the first indication field is used to indicate the number of retransmissions of the hybrid automatic repeat request confirmation message.
  • the first signaling includes at least one of the following:
  • Downlink control information DCI for scheduling random access messages Downlink control information DCI for scheduling random access messages.
  • the first indication information is at least one first indication field of the first signaling; the number of retransmissions of the hybrid automatic repeat request confirmation message is a value corresponding to the at least one first indication field.
  • the first indication information includes a first signaling and a second signaling; wherein the first signaling is used to indicate the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message; and the second signaling is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message.
  • the first indication information includes predefined configuration information and second signaling;
  • the predefined configuration information includes the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message;
  • the second signaling is used to indicate the first indication field, and the first indication field is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message from the number of retransmissions of at least one candidate hybrid automatic repeat request confirmation message.
  • the first signaling is radio resource control RRC signaling
  • the second signaling is downlink control information DCI for scheduling random access messages.
  • the transceiver module 901 is further used to receive a first request sent by a terminal device, where the first request is used to send first indication information to the terminal device.
  • the transceiver module 901 is further used to receive a hybrid automatic repeat request confirmation message that is repeatedly transmitted by the terminal device according to the number of retransmissions indicated by the first indication information.
  • a network device can send a first indication message to a terminal device, where the first indication message is used to indicate the number of retransmissions of a hybrid automatic repeat request confirmation message corresponding to a random access message, and receive the hybrid automatic repeat request confirmation message sent by the terminal device according to the first indication message.
  • the network device can accurately indicate the number of retransmissions of the hybrid automatic repeat request confirmation message corresponding to the random access message to the terminal device based on the first indication message, and receive the hybrid automatic repeat request confirmation message sent by the terminal device according to the first indication message, so as to effectively improve the transmission effect of the hybrid automatic repeat request confirmation message.
  • FIG 10 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure.
  • the communication device 100 can be a network device (such as the network device in the aforementioned method embodiment), or a terminal device (such as the terminal device in the aforementioned method embodiment), or a chip, a chip system, or a processor that supports the network device to implement the aforementioned method, or a chip, a chip system, or a processor that supports the terminal device to implement the aforementioned method.
  • the device can be used to implement the method described in the aforementioned method embodiment, and the specific details can be referred to the description in the aforementioned method embodiment.
  • the communication device 100 may include one or more processors 1001.
  • the processor 1001 may be a general-purpose processor or a dedicated processor, etc.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 100 may further include one or more memories 1002, on which a computer program 1004 may be stored, and a computer program 1003 may be stored in the processor 1001, and the processor 1001 executes the computer program 1004 and/or the computer program 1003, so that the communication device 100 performs the method described in the above method embodiment.
  • data may also be stored in the memory 1002.
  • the communication device 100 and the memory 1002 may be provided separately or integrated together.
  • the communication device 100 may further include a transceiver 1005 and an antenna 1006.
  • the transceiver 1005 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function.
  • the transceiver 1005 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.
  • the communication device 100 may further include one or more interface circuits 1007.
  • the interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001.
  • the processor 1001 runs the code instructions to enable the communication device 100 to execute the method described in the above method embodiment.
  • the processor 1001 may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 1001 may store a computer program 1003, which runs on the processor 1001 and enables the communication device 100 to perform the method described in the above method embodiment.
  • the computer program 1003 may be fixed in the processor 1001, in which case the processor 1001 may be implemented by hardware.
  • the communication device 100 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device (such as the network device in the aforementioned method embodiment) or a terminal device (such as the terminal device in the aforementioned method embodiment), but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 10.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the schematic diagram of the chip structure shown in Figure 11 includes a processor 1101 and an interface 1102.
  • the number of processors 1101 can be one or more, and the number of interfaces 1102 can be multiple.
  • Processor 1101 is used to implement S201 and S202 in FIG. 2 , or to implement S103 in FIG. 3 , or to implement S204 in FIG. 4 , etc.
  • the interface 1102 is used to implement S106 and S206 in FIG. 6 , or to implement S107 in FIG. 7 .
  • the chip further includes a memory 1103, and the memory 1103 is used to store necessary computer programs and data.
  • the embodiments of the present disclosure also provide a communication system, which includes the communication device in the embodiment of FIG. 9 as a network device (such as the network device in the embodiment of the method) and the communication device as a terminal device (such as the terminal device in the embodiment of the method), or the system includes the communication device in the embodiment of FIG. 10 as a network device (such as the network device in the embodiment of the method) and the communication device as a terminal device (such as the terminal device in the embodiment of the method).
  • the present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk
  • At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • the predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

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Abstract

Des modes de réalisation de la présente divulgation concernent un procédé et un appareil d'indication, un dispositif, et un support de stockage, applicables à un système de communication. Le procédé consiste à : recevoir des premières informations d'indication envoyées par un dispositif de réseau, les premières informations d'indication étant utilisées pour indiquer le nombre de retransmissions d'un message d'accusé de réception de demande de répétition automatique hybride (HARQ-ACK) correspondant à un message d'accès aléatoire, et envoyer le message HARQ-ACK selon les premières informations d'indication. En mettant en œuvre le procédé selon la présente divulgation, le nombre de retransmissions du message HARQ-ACK peut être indiqué avec précision sur la base des premières informations d'indication, ce qui permet d'améliorer efficacement la capacité de couverture et l'effet de rétroaction du message HARQ-ACK.
PCT/CN2022/121405 2022-09-26 2022-09-26 Procédé et appareil d'indication, dispositif, et support de stockage WO2024065095A1 (fr)

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